socay.com

Tripolar Overvoltage Protection for Network Interfaces
LT3021
SO-08
Description
The LT3021 is a low capacitance transient surge arrestor designed
for protection of high debit rate communication network. Its low
capacitance avoids distorsion of the signal as it has been designed
for T1/E1 and Ethernet networks.
Features
u
u
u
u
Tripolar crowbar protection
Low capacitance
Repetitive peak pulse current: IPP=30A (10/1000μs)
Low holding current: IH=30mA
Functional Diagram
Applications
Dedicated to data line protection, this device provides a tripolar
protection function. It ensure the same protection capability with the
same breakdown voltage in both common and differential modes.
Electrical Parameters
Symbol
Fig1. LT3021 Characteristic Curve
I
Parameter
VDRM
Stand-off Voltage
IDRM
Leakage Current VDRM
VBR
Continuous Reverse Voltage
VBo
Breakover Voltage
IH
Holding Current
IBo
Breakover Current
IPP
Peak Pulse Current
C
Capacitance
IPP
IBO
IH
IDRM
SOCAY Electronics Co., Ltd.
Revision September 25, 2013
V
VDRM VBR VBO
www.socay.com
1/2
@SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Tripolar Overvoltage Protection for Network Interfaces
LT3021
Electrical Characteristics (Tamb=25°C)
VDRM
IDRM
Max.
VBO
IBO
VT
IT
IH
C0
Max.
Max.
Max.
Max.
Min.
Max.
IPP
(10/1000μs)
V
μA
V
mA
V
A
mA
pF
A
28
10
38
300
5
1
30
25
30
SO-08 Package Outline & Dimensions
DIM
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
-
-
1.75
-
-
0.069
a1
0.1
-
0.25
0.004
-
0.010
a2
-
-
1.65
-
-
0.065
b
0.35
-
0.48
0.014
-
0.019
b1
0.19
-
0.25
0.007
-
0.010
C
-
0.50
-
-
0.020
-
D
4.8
-
5.0
0.189
-
0.197
E
5.8
-
6.2
0.228
-
0.244
e
-
1.27
-
-
0.050
-
e3
-
3.81
-
-
0.150
-
F
3.8
-
4.0
0.15
-
0.157
L
0.4
-
1.27
0.016
-
0.050
M
-
-
0.6
-
-
0.024
c1
S
45° (Typ)
8° Max.
Soldering Footprint
SOCAY Electronics Co., Ltd.
Revision September 25, 2013
www.socay.com
2/2
@SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.